What number makes the equation true? Enter the answer in the box.
7x
= 21
Pls help

Answer:

This answer is A

A. X= -1

Step-by-step explanation:

-1 is equal to-1

Answer:

oh yes i see

Step-by-step explanation:

ya well good luck! :)

Answer:

Notation. The inverse of the function f is denoted by f -1 (if your browser doesn't support superscripts, that is looks like f with an exponent of -1) and is pronounced "f inverse". Although the inverse of a function looks like you're raising the function to the -1 power, it isn't.

Step-by-step explanation:

Answer:

resevere

Step-by-step explanation:

Answer:

if 100% of something is the whole thing and she increased it by 100% that means the price she sold the shoes is 200%. 200÷2 100. original price was $100

Answer:200+200=400

Step-by-step explanation:

Answer:

we have

tan x=[tex] \frac{perpendicular}{base} [/tex]

=[tex] \frac{15}{36} [/tex]=[tex] \frac{5}{12} [/tex]

Answer:

8d

hope it helps.........

Answer:

x = -1

Step-by-step explanation:

2(x - 3) = -8

2x - 6 = -8

2x = -8 + 6

2x = -2

2x/2 = -2/2

x = -1

Answer:

B Cos 3/25

Explanation:

X is the missing angle. From X the opposite side is the bottom of the triangle, and the adjacent is 3. Since Cos is the adjacent over the hypotenuse, the answer is Cos 3/25

Answer:

2.41666666667

Step-by-step explanation:

I hope this is right

Answer:

6,2

Step-by-step explanation:

The fourth point of the parallelogram will be (-6,1) so option (C) will be correct.

A basic quadrilateral with two sets of parallel sides is known as a parallelogram.

A parallelogram's facing or opposing sides are of equal length, and its opposing angles are of similar size.

There are 4 types of parallelograms, including 3 special types. The four types are parallelograms, squares, rectangles, and rhombuses.

The slope of the green lines and red line should be same for being it a parallelogram.

Slope of green line = (7-2)/(3-1) = 2.5

So the only coordinate is matching the slope 2.5 of red line is (-6,1).

Slope = (6-1)/(-4+6) = 2.5

Hence "The fourth point of the parallelogram will be (-6,1)".

Learn more about parallelograms ​here,

brainly.com/question/3050890

#SPJ2

Answer: The first graph with the line going up

Answer:

28

Step-by-step explanation:

add the 2 10 4 and 12

Step-by-step explanation:

6(p+3)-6(p+5)=6p+18-6p-30=-12

Answer:

-12

Step-by-step explanation:

Expand the first bracket:

6p + 18 - 6(p + 5)

Expand the second bracket:

6p + 18 - 6p - 30

Now simplify:

6p - 6p = nothing

So you get:

18 - 30

Which equals:

= -12

Answer:

5x + 17

Step-by-step explanation:

Given

2(x + 7) + 3(x + 1) ← distribute both parenthesis

= 2x + 14 + 3x + 3 ← collect like terms

= 5x + 17

Answer:

Step-by-step explanation:

2(x + 7) + 3(x + 1)

To simplify, you multiply 2 by the bracket. That is 2 × x + 2 × 7 which is equal to 2x + 14 then you do same for the other bracket. 3 × x + 1 = 3x + 3 now you add them and group like terms. Like this, 2x + 3x + 14 + 3

So our answer is , 5x + 17.

Good luck

Answer:

45yand12yv

Step-by-step explanation:

Answer:10/60

If need to  simply it is 1/6.

Step-by-step explanation: Mutiply 5/12 by 2/5 .

Answer:

ans of 14 number question

Answer:

x +3 = y

Step-by-step explanation:

So you are looking for mx + b = y

m is the slope

b is the initial value

Try to isolate the y variable

x - y = -3

Subtract x from both sides

-y = -x - 3

Multiply everything by -1 to make the y value positive

y = x + 3

Answer:

x=√2 or x=−√2

x=±√2

Step-by-step explanation:

12x^2=24

Step 1: Divide both sides by 12!

12x^2/12=24/12

x^2=2

Step 2: Take the square root!

x=±√2

The solution of the equation 12x² = 24 is x = ±√2.

What is Algebraic expression ?

Algebraic expressions are the idea of expressing numbers using letters or alphabets without specifying their actual values. The basics of algebra taught us how to express an unknown value using letters such as x, y, z, etc. These letters are called here as variables. An algebraic expression can be a combination of both variables and constants. Any value that is placed before and multiplied by a variable is a coefficient.

Here, the equation is :

12x² = 24

now, to solve for x :

divide both side by 12 :

x² = 24/12

x² = 2

take square root both  side :

x = ±√2

Therefore, the solution of the equation 12x² = 24 is x = ±√2.

Read more about equations at :

https://brainly.com/question/12895249

#SPJ6

Given:

[tex]\dfrac{9}{10}[/tex] divided by 3.8.

To find:

The quotient.

Solution:

We have,

[tex]\dfrac{9}{10}[/tex] divided by 3.8.

Mathematically it can be written as

[tex]\dfrac{9}{10}\div 3.8[/tex]

Convert the decimal into fraction by multiplying and dividing by 10.

[tex]=\dfrac{9}{10}\div \dfrac{38}{10}[/tex]

[tex]=\dfrac{9}{10}\times \dfrac{10}{38}[/tex]       [Reciprocal rule of division]

[tex]=\dfrac{9}{38}[/tex]                     (Cancel out the common factors)

[tex]\approx 0.237[/tex]

Therefore, the quotient is [tex]\dfrac{9}{38}[/tex], which is approximately 0.237.

Answer:

The number is  48

Step-by-step explanation:

First, let's call the number we are looking for n.

We can then write "two-thirds of the number" as 2/3n

We can also write "one-half of a number" as 1/2n

Finally, we are told 1/2n is the same as 2/3n −8 or: 1/2n = 23n −8  

We can now solve for n: 1/2n − 2/3n = 2/3n −8 − 2/3n 1/2n − 2/3n = −8We next need to get the fractions over common denominators, in this case, 6 by multiplying each fraction by the necessary for of 1: (3/3) 1/2n − (2/2) 2/3n = −8 3/6n − 4/6n = −8 − 1/6n = −8.  

We can finally solve for n by multiplying by -6 to isolate n −6 ⋅(−1/6)n = −8⋅ − 6  

1n = 48

n =48

Answer:

I believe the answer is x=7

Step-by-step explanation:

Answer:

s' 44

Step-by-step explanation:

step is s

Answer:

8x + 9

Step-by-step explanation:

Treat the question as 2 separate brackets

First expand 3(2x + 1) :

6x + 3

Then expand 2(x + 3) :

2x + 6

Now add the two answers together and simplify :

= 6x + 3 + 2x + 6

= 8x + 9

hope this helps :)

Answer:

-41r - 16

General Formulas and Concepts:

Pre-Algebra

Distributive Property

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

-r + 8(-5r - 2)

Step 2: Simplify

Answer:

The radius of the circle is 4 meters.

Thus, 2nd option is correct.

Step-by-step explanation:

Given

Area of a circle = 16π squared meters.

To determine

The radius of the circle = r = ?

Using the formula

Area of circle = πr²

substitute Area of circle = 16π and in the equation

16π = πr²

switch the sides

πr² = 16π

divide both sides by π

πr²/π = 16π / π

r² = 16

r = 4, r = -4

As radiud can not be negative, so

r = 4 meters

Therefore, the radius of the circle is 4 meters.

Thus, 2nd option is correct.